optima.study - dns.ninja
optima.study
study
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.study ⭐ | ||||||
| NS | b.nic.study | ||||||
| NS | c.nic.study | ||||||
| NS | x.nic.study | ||||||
| NS | y.nic.study | ||||||
| NS | z.nic.study | ||||||
| SOA | a.nic.studyadmin@tldns.godaddy serial=1786947635 | ||||||
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSanita.ns.cloudflare.com2026-03-19 → 2026-08-17 · 2 obs
● 2026-08-17 06:32:04
●NSpranab.ns.cloudflare.com2026-03-19 → 2026-08-17 · 2 obs
● 2026-08-17 06:32:04
●MXoptima-study.mail.protection.outlook.com2026-03-19 → 2026-08-17 · 2 obs
● 2026-08-17 06:32:04
●A104.21.37.1622026-03-19 → 2026-08-17 · 2 obs
● 2026-08-17 06:32:04
●A172.67.210.1172026-03-19 → 2026-08-17 · 2 obs
● 2026-08-17 06:32:04
○A2606:4700:3033::6815:25a22026-03-19 → 2026-06-12 · 4 obs
● 2026-06-12 22:19:50
○ 2026-07-01 02:15:44
○ 2026-08-17 06:32:04
●A2606:4700:3034::ac43:d2752026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 02:15:44
● 2026-08-17 06:32:04
●A2606:4700:3036::6815:25a22026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 02:15:44
● 2026-08-17 06:32:04
○A2606:4700:3037::ac43:d2752026-03-19 → 2026-06-12 · 4 obs
● 2026-06-12 22:19:50
○ 2026-07-01 02:15:44
○ 2026-08-17 06:32:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | c.nic.study, a.nic.study, y.nic.study, z.nic.study... | 12 records |
| optima.study | anita.ns.cloudflare.com, pranab.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.82
NS records: anita.ns.cloudflare.com, pranab.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optima.study (unsigned zone)
⏱️ Timing
Total: 362ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.37.162, 172.67.210.117 |
| AAAA | 2 | 2606:4700:3034::ac43:d275, 2606:4700:3036::6815:25a2 |
| NS | 2 | anita.ns.cloudflare.com, pranab.ns.cloudflare.com |
| MX | 1 | optima-study.mail.protection.outlook.com |
| TXT | 4 | MS=ms32379877, esputnik-verification=RVNQX0RWS19WMQABa_... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | anita.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.study, b.nic.study, c.nic.study...)
Analysis
IP Addresses
optima.study has four IP addresses: 104.21.37.162, 172.67.210.117, 2606:4700:3034::ac43:d275 and 2606:4700:3036::6815:25a2.
procuroamante.org, madametissu.eu, justrats.com and two other host names share IP numbers with optima.study.
Name Servers
optima.study uses two name servers for its delegation: anita.ns.cloudflare.com and pranab.ns.cloudflare.com.
optima.study uses the same name servers as several other domains — among them gramo.be, casino41215a.buzz, notariaatverelst.be and two more.
optima.study shares at least some of its name servers with other domains, including kaba.pics, wood700.com, etisalat.homes and two others.
Hostnames that resolve to 6 IP addresses:
Hostname anita.ns.cloudflare.com directs to 108.162.194.82, 162.159.38.82 and 172.64.34.82 along with 3 other IP addresses.
Hostname pranab.ns.cloudflare.com directs to 108.162.195.199, 162.159.44.199 and 172.64.35.199 along with 3 other IP addresses.
Mail Servers
Mail for optima.study is handled by a single mail server, optima-study.mail.protection.outlook.com.
optima-study.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.5, 52.101.68.8, 52.101.73.2 and 5 others.